Almond and Oat Fiber Muffins

Preheat the oven to 400 degrees F (200 degrees C). Grease the bottoms of 12 standard muffin cups.

Mix almond meal, sweetener, oat fiber, flaxseed meal, baking powder, and salt together in a bowl.

Whisk egg whites, kefir, and oil together in another bowl. Mix in dry ingredients just enough to moisten. Do not overmix; batter should be lumpy. Fill the muffin cups 2/3 full of batter.

Bake in the preheated oven until a toothpick inserted into the center comes out clean, 20 to 25 minutes. Immediately transfer to a wire rack to cool.